2009 Dodge Ram 1500 Pickup Owner Manual - Page 376

374 STARTING AND OPERATING Tire Pressures for High Speed Operation Radial Ply Tires The manufacturer advocates driving at safe speeds WARNING! within posted speed limits. Where speed limits or conditions are such that the vehicle can be driven at high Combining radial ply tires with other types of tires speeds, maintaining correct tire inflation pressure is very on your vehicle will cause your vehicle to handle important. Increased tire pressure and reduced vehicle poorly. The instability could cause an accident. Alloading may be required for high-speed vehicle operaways use radial ply tires in sets of four (or six, in the tion. Refer to original equipment or an authorized tire case of trucks with dual rear wheels). Never combine dealer for recommended safe operating speeds, loading them with other types of tires. and cold tire inflation pressures. WARNING! High speed driving with your vehicle under maximum load is dangerous. The added strain on your tires could cause them to fail. You could have a serious accident. Do not drive a vehicle loaded to the maximum capacity at continuous speeds above 75 mph (120 km/h). Cuts and punctures in radial tires are repairable only in the tread area because of sidewall flexing. Consult your authorized tire dealer for radial tire repairs. Tire Spinning When stuck in mud, sand, snow, or ice conditions, do not spin your vehicle's wheels faster than 30 mph (48 km/h) or for longer than 30 seconds continuously without stopping when you are stuck.